Clutch.



E. D. WOODS.

CLUTCH.

APPLICATION FILED DEC. 15. IHHS.

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EATION F IEEQSSAGHUSEETS.

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i'bull'whomz't mag concern: V I Be it known that I, EDWARD.D. l v'oons;

The objects of the invention are to provide a lever operated clutch in whichv a cv-Q lindrical engaged member is rotated hy means oi a lever which is pivoted upon a- "rotatable arm, and isfialso directly engaged bymeans of a gripping device or member po s1 ioned intermediate of the lever and rotatable clutch member. i

In this device the engaging parts of the gripping and cylindrical members are 50 designed that thin surfaces will make positive contact with each other in such a manner that the frictional contact will increase in power proportionately to the amount of pressure applied, and can not slip.

The invention further includes a separate dripping-member adj ustably attached to said lever.

It includes means for adjusting the grip ping member so that unworn gripping-surfaces can be constantly presented to thecylindrical. clutch memberto maintain the efi'iciency oi--the devicel 7 It includes a disk shaped gripping memher having a V'shaped edge in cross section engagingan annular ll shaped groove in the cylindrical clutch member and also a disk shaped gripping member having a V shaped edge in cross section and in which the width of the engaging edge isprogressively increased to counteract the effect of wear upon the sides-of said groove.

It also includes a clutch lever provided with a gripping member upon one side thereof and pivotedupon a rotatable arm having a recess in which said gripping member is inclcsed; in order to give direct action to the gripping member and prevent distortion-oi the arm.

p includes means for giving increased strength to the arm. w 7

it includes the combination and arrangement of parts and construction of details hereinafter described, shown in the accom- Specification of ietters Eatent.

member A.

section formed in too intimate contact between the bolt K having chores.

Application flied December 15,1s1e. Serial No. mm.

panying drawings and specifically pointed out in the claims. I

In the accompanying drawings Figure l is a side elevation of the device, portions be ing broken away to show the disk shaped gripping member; Fig. 2 is aplan thereoi; h igs. 3 and t are planme'ws oi" the grippingdisk and bolt which secures the diskupon the lever; Fig. 5 is an elevation of -Fig. 6 is a-perspectiv'e of the device.

in these views A. is a cylindrical clutch member attached'by means of a transverse pin Etc a shaft C such as the" engine shaft of an automobile so that the devicelcan he employed to obtain the initial cylinder pres sure, as an engine starter. E is the fan pulley sleeved over the cylindrical clutch F is an annular 'roove of V shape in cross G is the toothed extremity for cranking the machine H is an arm sleeved over the cylindrical clutch A and'retained between the flange or shoulder A and the pulley E.

A spring Washer or washers I, prevent I engaging parts. The armis rotatable about the cylindrical clutch member upon a common axis. Pivoted at P tothis arm is the lever J which is provided with a gripping member K interposed between the inner end of the lever and the cylindrical clutch member.

This gripping: member is provided with a V shaped edge K corresponding in its cross section with the sides of the ll-shaped groove F and adapted to make ngagement with and rotate the cylindrical member when the clutch is operated. p

This gripping member is preferably disk shaped and circumferentially adjustable on its axis so that a fresh gripping edge can he presented to the groove as it becomes Worn by use.

This adjustment is efi'ected by means of a a ribbed or corrugated surface K which engages a complementary surface K in the sides of the opening K in the dislnj centrally positioned therein.

To counteract the efie'cts of wear upon the said bolt.

cylindrical portion and usually provided 1 Figs. 3-, 4, and 5.

To give a lirect and positive gripping eetion to toe (lislr it is niountetl upon the inner side of the lever and a recess it is provioieo therein in winch it moves.

This prevents distortion of the lever by' twistin The arm is also yoke shaped at S to provide a stop for the lever, and also to reinforce the same and obviates the danger of breaking or bending the lever.

Having described the invention What claim as new and ci'esire to secure by Le tors Patent is I. in a clutch, a cylindrical clutch memher, on arin rotatable upon a common axis, a lever pivoted thereon, a grip means intermediate of said lever encl cylindrical clutch member, and a separate means for securing said. grip member upon said lever, sni l securing means permitting alsofoi circumferentialedjustment of the periphery of said gripping memos to counteract the eii'eets of wear.

In-e cliiteh, a cylindrical clutch member provioleci with a circumferential V shepeci groove, an arm rota-table upon a common axis, a, lever pivoted upon said arm, and a disk mounted upon said lever, said disk providecl With e conversely V shaped annular gripping edge adapted to engage with said if shepeol groove in said cylindrical clutch Looms!) s L, L 1. memhenmvhen Sfllfll lever is operates, same 7 arm provided with e reeess in which said disk moves, said disk provided twltll an opening, and a device for securing seicl disk upon said arm, said securing device and the sides oi the opening in said disk provider} with complementary interacting retaining means whereby periphery of said disk can h eirciimi'erentielly adjusted to present fresh Wee-ring surfaees LO seiol eyiindrieei gripping 'erige eapted to engage with seicl shaped groove in said cylinorieal clutch member, when said lever is operated, seici (iisk oircnmferentielly adjustable in saicl lever, and the ennuL r J shapeii edge thereof progressively thickened at one etige whereby the amount of wear upon the sides of the if shaped groove can be equalized in the thick ened engaging edge of semi disk;

In testimony whereof, I hereunto set my hand this 5" dey of December, 1916.

Envvirsn n. ivoons, in presence of TWM. M. lvi'o imon,

GHAs. F. 81m. 

